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Topic: maxbotix ultrasonics below 6inches (Read 543 times) previous topic - next topic

_kuroo

does anyone know how to get the maxbotix's lv-ez series ultrasonic sensors to give me a value below 6inches? or better yet cm?
i've got the lv-ez3
Dip your feet in gasoline, walk on lava

AWOL

#1
Apr 27, 2012, 02:40 pm Last Edit: Apr 27, 2012, 03:45 pm by AWOL Reason: 1
From the horse's mouth  :
Quote
Virtually no sensor dead zone, objects closer than 6 inches range as 6 inches


FWIW, a lot of these off-the-shelf rangers send streams of eight cycles of 40kHz.
The wavelength in air is around 8.5mm, so eight cycles is nearly 7cm.
Given that the transmitter usually rings for another five or six cycles after the eight that are driven, this limits your minimum range.
"Pete, it's a fool looks for logic in the chambers of the human heart." Ulysses Everett McGill.
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